Chase.



'F. C. LEETHEM.

CHASE.

APPLICATION FILED APR-5, 1913.

1,167,084, I Patented 3111.4, 1916.

WITNESSES: v IN VE IV TOR A ATTORNEYS FRANK G. LEETHEM, 0F MIDDLETOWN, NEW YORK, ASSIGNOR TO'LATI-IAM AUTOMATIC REGISTERING GOMPAN,Y,'A.CORPORATIO1\T OF ILLINOIS.

CHASE.

' Be it known that I, FRANKC. LEETHEM, a citizen'of the United States, residing at Middletown; State of New York, have invented certain new and useful Improvements in Chases, of which the following is a clear, full, and exact description.

This invention relates to a printers chase, and one of the objects of the invention is to produce a chase formed of rails having an improved joint for connecting them to-" gether to form the corners of the chase.

A further object of the invention is to produce a corner joint for a chase which can bevery simply puttogether but which will be very rigid and secure when in use.

The corner joint involves the use of a lock-'' ing device which also constitutes a feature of my invention. r I

Other objects of the invention will appear more clearly from a'thorough understanding ofthe invention." v

'The invention consists in thegeneral com- Zbination of parts or in the features of said parts hereinafter described, all of which contribute to'produce an efficient printers chase. a v

' Apreferred embodiment of my invention will be particularly described in the followa ing specification while the broad scope of my invention will be pointed outin the appended claims.

In the drawings, Figure 1 is a pl an o-f a chase embodying my inventionycertalnparts being broken away; Fig.2is a plan showing the corner of the chase upon anenlarged scale; Fig. dis a vertical section taken on the line 33 of Fig. 2 and further illustrating the locking-device"; Fig. 4 is a detail view further illustrating the preferred form of the locking device. V

' Referring more particularly to the parts, the chase 1 is formed of rails 2, 3, 4 and 5 attached together in rectangular form. In forming the corner joint'for connecting adjacent rails such'as'therails 2 and 3, I provide one of the rails such as the rail 3 with adeep notch or socket 5 on its inneredge.

This notch may be of substantially rectangu- V lar or square form, so that it presentsa shoulder 6 extending transversely of the rail 3 and transversely to the plane of the chase. V v -The1rail-2 is :formed at its end with a Specification of Letters Patent.

, Application filed April 5, 1913.

PatentedJan.4,1916. Serial No. 759,244. 1

tongue or'projection 7 which extends into the socket. 5 and preferably with its end abutting against the bottom of the notch or socket 5. The side edge of this projection 7 which comes against the shoulder 6 is constructed so that it interlocks with the shoulder 6 and in this way I form two interlocking shoulders"disposed transversely to the rail 3 'I' prefer to bring about this interlocking eifectby meansof one or' more projections or teethS in one of the shoulders fitting in'corresponding notches in the opposite shoulder. The width ofthe notch or socket 5 is sufliciently great to enable the projection 7 to have. considerable play or movement. This'l'ateral movement enables from the teeth or. interlocking means 8.

{On the side of'the notch 5 opposite to the interlocking shoulders at the point 6, I pro: vide a locking devicet) which is preferably constructed as illustrated in Figs. 2 to 4. Each locking device preferably comprises a bolt 10 which is mounted atone side of the shoulders in a bore- 11 inthe rail, and arranged so that itiis adapted to be extended i out'into the notch so as to'engage the adjacent edgeof the other rail and force it latorally to lock it in the socket These bolts are preferably formed with tapered or co'nical noses 12' which engage with correspond ing conical recesses 13 in the edge of the rail whichthe bolt clamps. In order to project thebolt lO outwardly to lock the joint} I prefer to construct the rear end of the bolt with a reduced or narrow shank 14 having an inclined edge15 which is adapted to rest against a conical tip 16 which is formed on the lower p ortion of an adjusting screw l7, said screw preferably being mounted in athreaded bushing 18. This bushing is simply set in a bore 19 in the rail and is formed with longitudinal slot 20 which enables the largement or head'2l which will not pass i I 105 through the slot,

Along the length of the rails I provide locking devices 22 similar to the locking devices 9' already referred to exceptthat the bolts 23 of these locking devices have flat ends. These locking devices 23 are arranged so that some of them will extend their bolts beyond the outer edge of the rail and some of them beyond the inner edge. This enables the clamping devices 22 to clamp the form 24 within the chase securely in placeformed with angular sockets 27 which are adaptedto receive a wrench for the purpose of tightening up the locking bolt. These adjusting screws are preferably arranged so that the upper faces are flush with or below theupper face of the chase.

It is understood that the embodiment of the invention described above is only one of the many embodiments or forms the invention mayt'ake, and I do not wish to be limited in the practice of my invention nor 1n the scope of-myclaims to the particular embodiinent described.

What I claim is 1". A chase having adjacent rails forming a joint at the corner thereof, one of said rails having a socket in the inner edge thereof, the other of said rails having a projection receivedin said socket and freely movable across said socket, and means carried by one of said rails for drawing said projection laterally to lock the same in said socket.

2 A chase having adjacent rails forming a joint at the corner thereof, one of said rails having a socket in the inner edge thereof, the other of said rails having a projection received in said socket and freely movable across said socket, and means carried by one of said rails for locking said projection in said socket, the edge of said socket and edge of said projection being constructed so as to interlock when said projection is moved laterally in said socket to prevent a relative movement of said rails.

3. A chase having adjacent rails forming a corner joint of the chase, one'of said rails having a socket with a locking shoulder extending transversely to the longitudinal axis of that rail and transversely to the plane of the chase, the other of said rails having a locking shoulder interlocking with said first locking shoulder to prevent a relative movement of said rails, and means carried by one of said rails engaging the adjacent edge of the other rail to force the other rail laterally to lock said shoulders together.

4:. A chase having adjacent rails forming a corner joint of said chase, one of said rails having a socket on the inner edge thereof, the other of said rails having a projection at the end thereof adapted to be received with lateral play in said socket, said socket and said projection having interlocking projections and recesses, and a locking member movably mounted in one of said rails at the joint for holding the parts and locking said projection and socket together.

A chase consisting of rails and joints having shoulders extending transversely to the plane of the chase from one side face of the chase to the other and connecting the ends of said rails, and a sliding bolt mounted at one side of said shoulders adjacent each joint and having a projecting end adapted to press itself against one of the rails to force the interlocking shoulders toward each other. 7

6. A chase having a side rail, a bolt mounted toslide in said rail and adapted to be extended beyond the edge thereof, an adjusting member mounted in the side of said rail and adapted to move downwardly toward the interior of said rail, a threaded bushing carrying said member and having a longitudinal slot, said bolt having an extension passinginto said bushing through saidslot, said member and said bolt having inclined engaging faces adapted to advance said bolt when said adjusting member IIIOVGS.'

7. A chase having a rail with a bore passing therethrough, an adjusting screw mounted in said bore, a bolt mounted to slide in said rail and adapted to extend beyond the edge thereof, said bolt having an extension passing into said bore, said extension having an inclined edge engaging said adjusting screw whereby said bolt may be advanced by said adjusting screw, said extension having an enlargement within the bushing of greater width than said slot whereby said bushing 'retainssaid bolt.

8. A chase having a railand a transverse bore therein, a bushing mounted in said bore and having an internal thread and a longitudinal slot, a locking bolt movably mounted in the side of said rail and adapted to project beyond the edge thereof, said bolt having an extension passing through said slot into said bore, said extension having an inclined edge, said adjusting screw having an inclined tip engaging said inclined edge for advancing said bolt.

9. A chase having rails with looking devices mounted therein, certain'of said looking devices having members adapted to be extended beyond the inner edges of said rails, certain ofsaid locking devices having members adapted to be extended beyond the outer edges of said rails, whereby said locking devices may look parts-on theinterior of the chase and may look said chase in position by pressure against furniture laid around the chase.

10. A chase having adjacent rails forming a corner joint of the chase, one of said rails having asocket with a locking shoulder extending transversely to the longitudiother in the direction in which they inter- 10 nal axis of that rail, and transversely of the lock, to lock said shoulders together.

plane of the chase, the other of said rails Signed at New York city, N. Y., this 3" hitVllflig a locking sililoullder interlocking with day of April, 1913;

5 said rst locking s 011 der by a latera movement parallel With the plane of the chase t0 FRANK LEETHEM' prevent a relative movement of said rails, V Witnesses: and means carried by one of said rails for F. D. AMMEN, forcing the shoulders relatively to each BEATRICE MURIS- Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington; D. C. 

